Propylene Oxide → HCID 66628397, compound
Reaction equation
Cl.[CH2:2]([O:4][C:5]([C@:7]1([F:27])[C@@H:12]2[C@H:8]1[CH2:9][C@@H:10]([O:17][CH2:18][C:19]1[CH:24]=[CH:23][C:22]([Cl:25])=[C:21]([Cl:26])[CH:20]=1)[C@@:11]2([NH2:16])[C:13]([OH:15])=[O:14])=[O:6])[CH3:3].C1OC1C>C(O)C>[CH2:2]([O:4][C:5]([C@:7]1([F:27])[C@@H:12]2[C@H:8]1[CH2:9][C@@H:10]([O:17][CH2:18][C:19]1[CH:24]=[CH:23][C:22]([Cl:25])=[C:21]([Cl:26])[CH:20]=1)[C@@:11]2([NH2:16])[C:13]([OH:15])=[O:14])=[O:6])[CH3:3]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
400 mg of (1R,2R,3R,5R,6R)-2-amino-3-(3,4-dichlorobenzyloxy)-6-fluorobicyclo[3.1.0]hexane-2,6-dicarboxylic acid 6-ethyl ester hydrochloride was added to a mixture of 5 mL of ethanol and 5 mL of propyleneoxide, and the mixture was heated to redux for 2.5 hours. After standing to cool, the precipitated solids were filtered, and the solids were washed with diethyl ether and then recrystallized from water: ethanol, thereby yielding 230 g of (1R,2R,3R,5R,6R)-2-amino-3-(3,4-dichlorobenzyloxy)-6-fluorobicyclo[3.1.0]hexane-2,6-dicarboxylic acid 6-ethyl ester.
Workup
- temperaturethe mixture was heated
- temperatureto cool
- filtrationthe precipitated solids were filtered
- washthe solids were washed with diethyl ether
- customrecrystallized from water
Sources & evidence
- ORD record
- ord-d4ab54df3764400ca09afbf316041340
- Source dataset
- uspto-grants-2011_10
- Patent number
- US08039647B2
Reaction notes
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